Package of sealing material



' Aug. 22,1967 L. D. BRACE. JR 3,337,040

\ PACKAGE OF SEALING MATERIAL Filed oct. so, 1964 In U e nof L o yd rasce, By his Azomey @Mdm `of the triangle may be UnitedStates Patent Office 3,337,040 PACKAGE F SEALING MATERIAL Lloyd D. Brace, Jr., Concord, Mass., assigner to United Shoe Machinery Corporation, Boston, Mass., a corporation of New Jersey Filed Oct. 30, 1964, Ser. No. 407,763 3 Claims. (Cl. 206--56) This invention relates to a package of a readily deformable putty-like sealing material of preformed cross section.

It has heretofore been proposed to package putty-like sealing material of preformed cross section in the form of a strip or strip wound on an arbor with a separator sheet between successive turns. The separator strip while effective to allow unwinding did not protect the shape of the strip from deformation either in winding or on storage since it merely rode on the highest portion of the strip. Also the surface of the putty-like sealing material progressively lost the ability to unite effectively with surfaces due to oxidation and to the inevitable sifting in of dust which contaminated the surface.

It is an object of the present invention to provide a package of readily deformable putty-like sealing material of preformed cross section in which the cross section is protected against deformation and in which aggressively active surfaces of the strips of putty-like material are insured at the time of application.

To these ends and in accordance with a feature of the present invention I have provided a package including a preformed strip of putty-like material the whole longitudinal surface of which is associated with flexible release sheet material effective to aid in maintaining the desired cross section and strippable from the putty-like material without deformation of the putty-like material to expose surfaces aggressively capable of uniting in sealing engagement with surfaces.

The preformed cross section strips of putty-like material may have various cross sections such as triangular or a rounded bead. `The triangular cross section is of particular value since a substantial proportion of expected uses involve the insertion of the putty-like material at the joint between panes of glass and window sash.

The invention will be described further in connection with the attached drawings in which:

FIG. 1 is a cross sectional end elevation of a strip package according to the present invention;

FIG. 2 is a partial diagrammatic end elevation showing the pressing int-o place of protective strip members on a series of formed strips of putty-like material;

FIG. 3 is a diagrammatic angular view showing the laying down of strips of protective sheet material on formed strips of putty-like material and the division of the protected strips of putty-like material into individual units; and

FIG. 4 is a cross sectional view of a side portion of a window sash and a pane of glass showing the disposition of a formed strip of putty-like material into the joint between the glass and the window sash.

A preferred embodiment of the sealing strip package as shown in FIGS. l to 3 comprises a strip 10 of putty-like sealing material with la triangular cross section defined by sides 12, 14 and 16. The surface 12 defined by a longer leg of the triangle rests on a flexible release sheet 18 which may be for example, a strip of oiled or other treated paper, glassine, Holland cloth or the like and the surfaces defined by the legs 14 and 16 of the triangle are covered by separate strips 20 and 22 of flexible release sheet material. The material of the .strips 20 and 22 covering the legs of the same material :as the sheet 18 covering the leg 12 or may be of more flexible limp 3,337,040 Patented Aug. 22, 1967 material, for example strips of relatively nonadhesive material such as polyethylene or other nonadherent plastic film.

As shown in FIGS. 2 :and 3, the manufacture of the package involves providing in any suitable way, e.g. extrusion a series of parallel strips 10 of putty-like material on a sheet 18 of flexible release material and passing the release sheet with the strips thereon beneath a roller device 24 adapted to press strips 26 of flexible release sheet material into contact with the exposed faces of the puttylike strips. The roller device comprises a series of V-edged roller members 28 mounted for rotation on a shaft 30 and disposed with the apex 32 of the V of each roller in close proximity to the surface of the release sheet 18 between the several strips 10 of putty-like material. Separate strips 26 of release sheet material are fed down and around the V-shaped roll members which creases them into V shape and presses them into engagement with the putty-like material. As shown in FIGS. 2 and 3 each strip 26 covers the triangle leg surfaces 16 and 14 of two adjacent strips 10 of putty-like material so that while all surfaces of the strips 10 of putty-like material are covered, the apex of the triangle coincides with the joint between two strips 26 of release sheet material.

The release sheet 18 carrying the strips 10 of puttylike material and the covering strips of release sheet material is then passed between a severing device 34 shown more particularly in FIG. 3. This severing device includes rotary cutting 'blades 36 mounted for rotation on a shaft 38 and spaced axially on the shaft to coincide with the valleys between adjacent strips 10` of putty-like material. The blades 36 cut through the strips 26 of release sheet material which have been laid on the surfaces 14 and 16 of the putty-like strips and also cut through the release sheet 18. The cutters are shown as effecting complete separation of the release sheets but if desired the cutting device may form rows of adjacent perforations enabling the strips to be separated at a later time.

The resulting pack-age may comprise one or more strips 10 of putty-like material of preformed cross section with a completely separate strip of release sheet material on each face. This is of particular advantage with the desirable triangular cross section since if a single strip of release paper covered more than one face, the angular of the release paper would interfere with peeling olf of the strip progressively along the length of the putty-like strip; while with the separate strips 18, 20 and 22 each may be peeled individually progressively along the length of the strip as needed. Particularly, for

has been found desirable to remove the strips 20 and 22 of release sheet material from the faces 14 and 16 leaving the strip 18 along the side 12 of the triangle as an aid both in handling the strip 10 for disposition in the angle between the sash 42 and the glass 40 and to allow the application of pressure to force the putty-like material into sealing engagement with the glass 40 and sash 42 surfaces without localized distortion of the putty-like material. When the putty-like material is in place the remaining strip 18 of release sheet material may be stripped oif leaving a smooth exposed surface.

It has been found that the surfaces 12, 14 and 16 of the putty-like material after removal of the strips 18, 20 and 22 of release sheet material are not only free from the dust and hardened oxidized surface skin characternot wish to be bound by this theory it appears that the act of removing the release sheet has some action on the physical character of the surface. Also that on storage of the package strip there may be some migration of fluid components to the surfaces covered by the release sheet so that the surface is particularly active.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United St-ates is:

1. An article of manufacture comprising the combination of a long narrow body of readily deformable putty like sealing material of substantially uniform triangular cross section, and separate strips of flexible release sheet material substantially completely covering each of the sides of said body extending along the length of said body of material and separately readily strippable from said body of sealing material without substantial deformation of said body.

Z. An article of manufacture comprising the combination of a long narrow body of readily deformable putty like sealing material of substantially uniform triangular Cross section and separate strips of release paper substantially covering each of the sides of said body extending along the length of said body of sealing material and separately readily strippable from said body of sealing material without substantial deformation of said body.

3. An article of manufacture comprising the combination of a plurality of long narrow bodies of readily deformable putty like sealing material, said bodies being 0f substantially uniform triangular cross section and being arranged in parallel closely spaced relation with a face of each body constituting the base of the triangle dis- A' posed in a common plane, a flexible release sheet covering said faces and holding said bodies in parallel relation, and strips of flexible release sheet material in V- shaped cross section, each strip being disposed with the point of the V adjacent said flexible release sheet and with the sides of the V covering adjacent faces of two of said 'bodies with the edges of said strips -at the upper edges of said bodies, whereby apices of the triangular cross section of said bodies coincide with the joints between two strips of release sheet material, said article being separable along the line of adjacency of the point of the V and said flexible release sheet into units comprising a single body of sealing material with a separate release sheet strip substantially coveringy each face, said release sheet material being strippable from said sealing material without substantial deformation of said sealing material.

References Cited UNITED STATES PATENTS 1,979,691 1l/l934 Jackson.

2,454,821 ll/ 1948 McKee.

2,977 ,267 3 /1961 Douthitt 206-5 6 3,075,640 l/l963 Snyder 206--56 FOREIGN PATENTS 1,325,524 3/1963 France.

THERON E. CONDON, Primary Examiner. MARTHA L. RICE, Examiner. 

1. AN ARTICLE OF MANUFACTURE COMPRISING THE COMBINATION OF A LONG NARROW BODY OF READILY DEFORMABLE PUTTY LIKE SEALING MATERIAL OF SUBSTANTIALLY UNIFORM TRIANGULAR CROSS SECTION, AND SEPARATE STRIPS OF FLEXIBLE RELEASE SHEET MATERIAL SUBSTANTIALLY COMPLETELY COVERING EACH OF THE SIDES OF SAID BODY EXTENDING ALONG THE LENGTH OF SAID BODY OF MATERIAL AND SEPARATELY READILY STRIPPABLE FROM SAID BODY OF SEALING MATERIAL WITHOUT SUBSTANTIAL DEFORMATION OF SAID BODY. 